HP VMA-series Memory Arrays Guide de l'utilisateur Page 67
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AM456-9025A HP VMA SAN Gateway Installation and Configuration Guide 67
In the above example, support for Memory Array devices was added. When configuring this
file, pay particular attention to the following:
•
path_grouping_policy should be set to group_by_serial
• getuid_callout should be set
• path_checker should be tur(TEST_UNIT_READY)
• failback should be immediate
• rr_weight should be uniform since weights are not assigned to the individual paths
• no_path_retry should be set to immediately bring path back online
• rr_min_io should be set to 4, but can be subject to change depending on the environment and
workload.
2. Save the multipath.conf file and proceed with Configuring the Multipath Daemon.
Configuring the Multipath Daemon
This section demonstrates how to configure the multipath daemon (
multipathd) so that it starts
when the system boots up.
To configure the multipath daemon, do the following:
1. Use the chkconfig command to add (-a) the multipath daemon (multipathd) as a service.
2. Restart the multipath service, using the service restart command.
3. Verify that the multipath service is running, using the multipath -ll command.
The following example demonstrates these steps for a single LUN that is accessible through two
Fibre Channel (FC) ports that are multipathed into a single multipath device (
/dev/mapper/
mpath1
).
# chkconfig -a multipathd
# service multipathd restart
# multipath -ll
mpath176 (36001b97074dc2dff74dc2dfe97c7089e) dm-0 VIOLIN, ARRAY
[size=1.0G][features=0][hwhandler=0][rw]
\_ round-robin 0 [prio=0][active]
\_ 5:0:2:1 sdl 8:176 [active][ready]
\_ 5:0:3:1 sdm 8:192 [active][ready]
mpath11 (36001b97074dc2dff74dc2dfeb6ecc00a) dm-1 VIOLIN, ARRAY
[size=1.0G][features=0][hwhandler=0][rw]
\_ round-robin 0 [prio=0][active]
\_ 5:0:2:2 sdx 65:112 [active][ready]
\_ 5:0:3:2 sdy 65:128 [active][ready]
- HP VMA SAN Gateway 1
- For release G5.5.1 1
- LEGAL NOTICES 2
- Mountain View, CA 94043USA 3
- Contents 5
- Intended Audience 7
- Document Conventions 8
- Reference Documents 9
- Getting Help 9
- Subscription Service 10
- Comments & Questions 10
- System Specifications 11
- Planning a Configuration 11
- Defining a Configuration 12
- System Configuration Examples 12
- Setup Task Map 17
- Requirements Checklist 18
- Information Notes 19
- Redundant Gateway 20
- Pairing Process Guide 20
- Redundant Gateway Pairing 21
- Process Guide 21
- Prerequisite 23
- Logging in to the SAN Gateway 24
- Choice: █ 27
- in the CLI 28
- Saving a Configuration 30
- Recommendation Description 31
- Verifying Storage Media 32
- Configuration 33
- Prerequisites 34
- Configuring Interface Bonding 34
- Interface Bonding Example 35
- VLAN Cluster Interface 36
- Configuring Network Switches 37
- Memory Gateway Software 39
- Upgrades” 39
- Configuration File Management 40
- User Roles 40
- VMA Gateway Node Replacement 41
- Procedure Steps 42
- Completing the Replacement 43
- Both Nodes Running G5.1.0 43
- <#_in_cluster> 45
- Block Storage Configuration 47
- Configuration Overview 49
- Viewing Containers 51
- Configuring Target Ports 52
- Supported Target Ports 52
- Configuring Initiator Groups 54
- Creating LUNs 56
- Exporting LUNs 59
- Multipath Overview 63
- Multipath Setup 64
- Setting Up DM Multipath 65
- 3000 Series 70
- Violin Memory 3205 70
- Violin Memory 70
- Compliance Information 73
- Security & Compliance 74
- Regulatory Information 75
- Regulatory Model Number 75
- Advised General Precautions 75
- Network Connected Equipment 76
- Lithium Battery Caution 77
- Cabinet Safety Precautions 77
- European Union RFI Statement 78
- Korea RFI Statement 78
- Canada RFI Statement 79
- Australia C-Tick Label 79
- Taiwan BSMI Statement 79
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